1 /* vim: set ts=2 sw=2 sts=2 et tw=80: */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 var EXPORTED_SYMBOLS = ["PurgeSessionHistoryChild"];
9 class PurgeSessionHistoryChild extends JSWindowActorChild {
10 receiveMessage(message) {
11 if (message.name != "Browser:PurgeSessionHistory") {
14 let sessionHistory = this.docShell.QueryInterface(Ci.nsIWebNavigation)
16 if (!sessionHistory) {
20 // place the entry at current index at the end of the history list, so it won't get removed
21 if (sessionHistory.index < sessionHistory.count - 1) {
22 let legacy = sessionHistory.legacySHistory;
23 let indexEntry = legacy.getEntryAtIndex(sessionHistory.index);
24 indexEntry.QueryInterface(Ci.nsISHEntry);
25 legacy.addEntry(indexEntry, true);
28 let purge = sessionHistory.count;
29 if (this.document.location.href != "about:blank") {
30 --purge; // Don't remove the page the user's staring at from shistory
34 sessionHistory.legacySHistory.purgeHistory(purge);